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October Weather in Santa Ana, Mexico

Last updated: August 27, 2025

In October, the average temperature in Santa Ana, Mexico is a pleasant 23°C (74°F). However, be prepared for a notable range: temperatures can dip to a chilly 3°C (37°F) or soar to a scorching 40°C (103°F). During this time, you'll experience around 13 mm (0.5 in) of precipitation over approximately 1 day, accompanied by an average humidity level of 66%. Stay comfortable and enjoy your visit!

October Temperature in Santa Ana

In October in Santa Ana, the average temperature is 23°C (74°F). Maximum temperatures can reach 40°C (103°F), while minimums can drop to as low as 3°C (37°F). Travelers should be prepared for a wide range of temperatures during their visit.

October Weather in Santa Ana: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Santa Ana, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Ana, October typically has an average temperature of 23°C (74°F), with highs reaching up to 40°C (103°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec555663717787858481746555
Data source: Temperature data for Santa Ana generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Santa Ana

In Santa Ana in October, the precipitation amount is 13 mm (0.5 in) over the course of 1 day.

October Precipitation Trends in Santa Ana

The chart displays monthly precipitation patterns in Santa Ana, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Santa Ana, October typically receives around 13 mm (0.5 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec323122436855949133325
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Santa Ana

In Santa Ana in October humidity is 66%. With an average temperature of 23°C (74°F), this humidity feels like a warm embrace, making outdoor activities slightly uncomfortable but still enjoyable for travelers who are properly hydrated and prepared for the moist conditions.

October Average Humidity in Santa Ana

This chart illustrates the average monthly humidity levels in Santa Ana, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Santa Ana is approximately 66%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%71%60%43%32%28%38%60%72%66%74%81%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Santa Ana

In Santa Ana in October, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Santa Ana.

Maximum UV Index Levels in Santa Ana for October

The chart shows the monthly maximum UV Index (UVI) for Santa Ana in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In October, the maximum UV index in Santa Ana typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec5710121212121211965
Data source: Santa Ana October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How October Weather in Santa Ana Compares to Other Months

Weather in Santa Ana varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Santa Ana, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Santa Ana, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (55°F)32 mm (1.3 inches)74%moderate
February Weather13°C (57°F)31 mm (1.2 inches)71%high
March Weather17°C (63°F)22 mm (0.9 inches)60%very high
April Weather22°C (71°F)4 mm (0.2 inches)43%extreme
May Weather25°C (77°F)3 mm (0.1 inches)32%extreme
June Weather30°C (87°F)6 mm (0.2 inches)28%extreme
July Weather29°C (85°F)85 mm (3.4 inches)38%extreme
August Weather29°C (85°F)59 mm (2.3 inches)60%extreme
September Weather27°C (81°F)49 mm (1.9 inches)72%extreme
October Weather23°C (74°F)13 mm (0.5 inches)66%very high
November Weather19°C (66°F)33 mm (1.3 inches)74%high
December Weather13°C (56°F)25 mm (1.0 inches)81%moderate

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